2231464

Information

• Patent Grant
• 2231464

• References
• Source

• Patent Number

  2,231,464

• Date Filed

  Not available

• Date Issued

  Tuesday, February 11, 1941
  83 years ago

• CPC

  • B64C11/065 - variable only when stationary
  • B63H3/008 - characterised by self-adjusting pitch

• US Classifications

  • 416 - Fluid reaction surfaces